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DM74ALS161B bảng dữ liệu(PDF) 7 Page - Fairchild Semiconductor

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Electrical Characteristics
over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C.
Switching Characteristics DM74ALS161B
over recommended operating free air temperature range.
Switching Characteristics DM74ALS162B, DM74ALS163B
over recommended operating free air temperature range.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIK
Input Clamp Voltage
VCC = 4.5V, II = −18 mA
−1.5
V
VOH
HIGH Level
IOH = −0.4 mA
VCC − 2V
Output Voltage
VCC = 4.5V to 5.5V
VOL
LOW Level
VCC = 4.5V
IOL = 4 mA
0.25
0.4
V
Output Voltage
IOL = 8 mA
0.35
0.5
V
II
Input Current at Max
VCC = 5.5V, VIH = 7V
0.1
mA
Input Voltage
IIH
HIGH Level Input Current
VCC = 5.5V, VIH = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = 5.5V, VIL = 0.4V
−0.2
mA
IO
Output Drive Current
VCC = 5.5V, VO = 2.25V
−30
−112
mA
ICC
Supply Current
VCC = 5.5V
12
21
mA
Symbol
Parameter
Conditions
From
To
Min
Max
Units
fMAX
Maximum Clock Frequency
VCC = 4.5V to 5.5V
40
MHz
tPLH
Propagation Delay Time
RL = 500Ω
Clock
Ripple
520
ns
LOW-to-HIGH Level Output
CL = 50 pF
Carry
tPHL
Propagation Delay Time
Clock
Ripple
520
ns
HIGH-to-LOW Level Output
Carry
tPLH
Propagation Delay Time
Clock
Any Q
4
15
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Clock
Any Q
6
20
ns
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
En T
Ripple
313
ns
LOW-to-HIGH Level Output
Carry
tPHL
Propagation Delay Time
En T
Ripple
313
ns
HIGH-to-LOW Level Output
Carry
tPHL
Propagation Delay Time
Clear
Any Q
8
24
ns
HIGH-to-LOW Level Output
Clear
Ripple
11
23
ns
Carry
Symbol
Parameter
Conditions
From
To
Min
Max
Units
fMAX
Maximum Clock Frequency
VCC = 4.5V to 5.5V
40
MHz
tPLH
Propagation Delay Time
RL = 500Ω
Clock
Ripple
520
ns
LOW-to-HIGH Level Output
CL = 50 pF
Carry
tPHL
Propagation Delay Time
TA = Min to Max
Clock
Ripple
520
ns
HIGH-to-LOW Level Output
Carry
tPLH
Propagation Delay Time
Clock
Any Q
4
15
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Clock
Any Q
6
20
ns
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
En T
Ripple
313
ns
LOW-to-HIGH Level Output
Carry
tPHL
Propagation Delay Time
En T
Ripple
313
ns
HIGH-to-LOW Level Output
Carry


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